1.Relationship between expression of alpha 2-HS-glycoprotein in placenta and insulin resistance in patients with gestational diabetes mellitus
Congming CAO ; Hongtao DING ; Miaorong LI
Chinese Journal of Postgraduates of Medicine 2014;37(27):7-9
Objective To investigate the relationship between expressions of alpha 2-HS-glycoprotein (AHSG) gene mRNA and protein in placenta and insulin resistance in patients with gestational diabetes mellitus (GDM).Methods The expressions of AHSG gene mRNA and protein in placenta were detected by reverse transcriptase-polymerase chain reaction (RT-PC R) and Western blot technique in normal uterogestation uterine-incision delivery patients (control group,43 cases) and patients with GDM (GDM group,45 cases).Fasting plasma glucose (FPG) and fasting insuhn (FINS) were detected before uterine-incision delivery,and the homeostasis model of assessment for insulin resistance index (HOMA-IR) was computed.Results The FPG,FINS and HOMA-IR in GDM group were significantly higher than those in control group [(5.28 ± 0.63)mmol/L vs.(4.24 ±0.21) mmol/L,(11.75 ±4.85) mU/L vs.(9.73 ±2.18) mU/L,2.79 ±1.02 vs.1.87 ± 0.66],there were statistical differences (P < 0.01 or < 0.05).The expressions of AHSG gene mRNA and protein in GDM group were significantly higher than those in control group (0.761 6 ± 0.069 1 vs.0.329 4 ± 0.025 1 and 0.824 5 ± 0.137 5 vs.0.420 3 ± 0.075 0),there were statistical differences (P< 0.01or < 0.05).HOMA-IR level in GDM group was positively correlated with AHSG gene mRNA and protein (r =0.633,0.587,P <0.05).Conclusions The expressions of AHSG gene mRNA and protein are significantly higher in patients with GDM.Insulin resistance may play an important role in the pathogenesis and development of GDM.
2.Quantitative Analysis of Oleanolic Acid from the Fruits of Glossy Privet (Ligustrum lucidum) in Different Growing Periods
Hemin MI ; Yongbing CAO ; Hongtao SONG
Chinese Traditional and Herbal Drugs 1994;0(05):-
By means of TLC-densitomery, the contents of oleanolic acid extracted from the fruits of Ligustrum lucidum were determined to be 8.04% (g/g) in the unriped fruit collected in August and 2.73% (g/g) in riped fruit gathered in December. This result showed that the oleanolic acid content in fructus L. Iucidum decreases gradually with growing until the fruit is fully riped.
3.Continuing Activation of Caspase-3 Following Neonatal Rat Hypoxic-ischemic Brain Damage
Juli WANG ; Hongtao CAO ; Yukun HAN
Chinese Journal of Perinatal Medicine 2003;0(05):-
Objective To explore the role of caspase-3 activation and DNA fragmentation in later period of neonatal rat hypoxic-ischemic brain damage(HIBD). Methods DNA fragmentation,caspase-3 mRNA and caspase-3 protein were measured in 2 wks、3 wks and 4wks after setting HIBD animal model in newborn wistar rats by FCM, RT-PCR and Immunohistochemistry. Results (1) Apoptosis lasted 4ks after HIBD. This suggested a long lasting role of apoptosis in neonatal HIBD by TNNEL and EM.(2)Caspase-3 mRNA expression was estimated by semi-quantitative RT-PCR. It was higher in HIBD group(0.771?0.074) than in control group(0.620?0.038, P0.05. Average Avalue of Caspase-3 protein in HIBD group(0.374 ?0.038) at 3 wks was significantly higher than that in control group(0.356?0.020,P
4.The comparative study on TMJ radiographs of patients with posterior teeth-lose with or without TMD
Hongtao CAO ; Meiqing WANG ; Furong LIU
Journal of Practical Stomatology 2000;0(05):-
Objectives: To study the clinical meaning of condyle-form asymmetry and its osseous changes shown on TMJ images of lateral oblique transcranial projection and lateral tomography. Methods: 113 patients with partial posterior teeth lose were enroled in the study.Among them 25 were with temporomandibular disorder (TMD group),39 with slight TMD sings (sub-TMD group) and 45 without TMD(TMD-free group). Radiographs were taken and studied for each patient. Results: It was found that the condyle form asymmetry and osseous changes were not significantly different among the three groups. Osseous change was related to the number of teeth-lose (P0.05). The symptoms and signs of TMD had close relationship with occlusal interferences. Conclusions: The changes shown on TMJ images do not show close relationship with TMD symptoms and signs. Occlusal interferences resulted from teeth-lose are related to the clinical symptoms and signs of TMD.
5.Comparative Study on MSCT-3D and COPT in Stomatology
Lixin ZHANG ; Hua GU ; Yantao NIU ; Qian CAO ; Hongtao NIU
Chinese Journal of Medical Imaging 2009;(6):449-453
Purpose:To explore the value of MSCT-3D in stomatology through comparing with COPT.Materials and Methods:Both MSCT 117 patients and COPT 117 patients in stomatology were selected at a particular period,COPT imaging was using computed post-processing,MSCT imaging was processed according to 3D information through work station,then to analyze the imaging results according to metal tooth、damaged tooth and broken tooth,later to compare the photograph 、the technique of computed post-processing、the photograph condition and exposure of MSCT and COPT.Results:Normal COPT patients were 9 cases ( 0.24% ),normal teeth were 3160 (84.4% ),unusual teeth were 551 (15.6%),normal MSCT-3D patients were llcases ( 0.29% ),normal teeth were 3138 (83.8% ),and unusual teeth were 606 (16.2% ).COPT belonged to COPT photograph,the emphasis was 2D,MSCT-3D belonged to spiral photograph,the emphasis was 3D,and MSCT imaging could be processed according to 3D reformation.The 3D effect of MSCT was batter than that of COPT.The radiation dosage was much higher than that of COPT.Conclusions: COPT could get 2D effects: MSCT-3D could improve 3D results on 2D basis,but the radiation dosage of MSCT is much higher than that of COPT in stomatology.
6.Management and Occupational Protection Against HIV/AIDS in Hospital
Huiying ZHU ; Xiaoyan WANG ; Hongtao CAO ; Yan WANG
Chinese Journal of Nosocomiology 2006;0(08):-
OBJECTIVE To enhance the management against the HIV and AIDS,strengthen the awareness of occupational protection among medical staff,and prevent the HIV spreads in the hospital.METHODS To establish the HIV/AIDS monitoring report management system,launching AIDS knowledge training,screening HIV seriously in hospital,sterilizing strictly with the medical instrument and managing the medical discards,and standardizing procedures of the medical nursing and process after the occupational exposing.RESULTS Through establishing the HIV/AIDS monitoring report management system and launching occupation protection training,the awareness of medical staff for precaution against the HIV/ AIDS was enhanced obviously.They could discover the patients early and take the effective measures for protection,sterilization and isolation in time.The average number of diagnosis days for HIV/AIDS patients shortened obviously than before.CONCLUSIONS Through enhancing management and supervision for HIV/AIDS in hospital,paying more attention to safety education for medical staff,we can prevent the AIDS spreading in the hospital and reduce the occurrence of occupational exposure among medical staff.
7.Development of constant-temperature-and-humidity test box used in medicament stability experiment
Yuzhen CAO ; Hongtao LIU ; Lixin ZHANG ; Wei WANG
Chinese Medical Equipment Journal 2003;0(12):-
This article introduces a constant-temperature-and-humidity test box, which, with a high-performance Aduc812 singlechip as the core, is composed of an integrated temperature and humidity sensor, a serial keyboard controller and a lattice-style liquid crystal module. With balance control mode of temperature an d humidity, PID control, temperature and humidity decoupling applied, the high-r esponse-speed and high-precision control can be fulfilled.
8.Methods and Experiences of Standardized Management for Rinse and Disinfection of Endoscope
Huiying ZHU ; Hongtao CAO ; Xiaohong RUAN ; Yan WANG
Chinese Journal of Nosocomiology 2006;0(03):-
OBJECTIVE To assure the medical safety,enhance the medical care,prevent medical infection by(endoscope) examination and do effectively the standardized management for rinse and disinfection of endoscope.METHODS Strengthening the organization,to establish and consummate the system,increase the devotion of(facilities,) organize personal training and standardize the work procedures.RESULTS The work for rinse and(disinfection) of endoscope in hospital came to be standardized management gradually.CONCLUSIONS The(standardized) management for rinse and disinfection of endoscope is the assurance for the validity and security of(endoscope) sterilization.
9.Clinical value of application of low dose scanning technology in the dual source CT coronary angiography
Zhiping ZHANG ; Hongtao HOU ; Guangzhao YANG ; Yulin CAO
Chinese Journal of Primary Medicine and Pharmacy 2017;24(17):2616-2619
Objective To observe the clinical value of application of low-dose scanning technology in dual source CT coronary angiography.Methods 200 cases who received coronary artery imaging were randomly selected as the study subjects.Patients were divided into the observation group and the control group using the random number method,100 cases in each group.All patients underwent dual source CT angiography.The observation group was treated by adaptive prospective ECG gated sequence,the control group was treated with retrospective ECG gated sequences.The image quality and radiation dose to bear were compared between the two groups.Results The various stages of image score proportion between the two groups had no significant difference(P>0.05).The average score of reading image of the observation group was (1.52±0.33)points,which of the control group was (1.48±0.46)points,there was no difference between the two groups(t=0.857,P>0.05).The CTDL,DLP and ED in the observation group were significantly lower than the control group[the observation group:CTDL(23.41±5.82),DLP(224.61±85.44),ED(3.01±1.12)mSv;the control group:CTDL(34.09±6.77),DLP(82.93±94.28),ED(5.33±2.01)mSv],and the differences were statistically significant(t=11.963,12.443,10.083,all P<0.05)].Conclusion Prospective ECG gated sequence technology can effectively reduce the radiation dose of the patients under dual source CT coronary angiography,reduce probability of radiation damage,and the image quality is not changed obviously,which meets the needs of clinical diagnosis.
10.Effect of microRNA-548ah targeting histone deacetylase-4 on the replication and expression of hepatitis B vi rus
Tongjing XING ; Hongtao XU ; Xinxing LU ; Lin CAO ; Maocong YE
Chinese Journal of Infectious Diseases 2016;34(5):274-279
Objective To investigate the effect of microRNA (miRNA )‐548ah targeting histone deacetylase‐4 (HDAC4) on the replication and expression of hepatitis B virus (HBV) .Methods HepG2 , 2 ,15 cells were transfected by mimics and inhibitors . The expressions of miRNA‐548ah and HDAC4 before and after transfection were detected by fluorescent quantitative polymerase chain reaction (PCR) . The expression of HDAC4 protein in HepG2 ,2 ,15 cells was detected by Western blotting .The target gene of miRNA‐548ah was analyzed by bioinformatics methods .3′UTR dual‐luciferase expression vector containing candidate HDAC4 target genes was built to test the luciferase activity .The levels of hepatitis B e antigen (HBeAg) and hepatitis B surface antigen (HBsAg) in the supernatant of cultured HepG2 ,2 ,15 cells were detected by enzyme‐linked immunosorbent assay (ELISA) .The level of HBV DNA in the supernatant of HepG2 ,2 ,15 cells was detected by fluorescent quantitative PCR .The t‐test was used for comparison between two groups ,SNK‐q tests were used for multiple groups comparisons .Results The expressions of miRNA‐548ah in HepG2 ,2 ,15 and HepG2 cells were 5 .74 ± 0 .02 and 2 .96 ± 0 .40 , respectively (t= 11 .89 ,P< 0 .01) ,and the expressions of HDAC4 mRNA were 9 .38 ± 0 .39 and 18 .13 ±0 .34 ,respectively (t = 29 .39 , P < 0 .01) . The expression of miRNA‐548ah in HepG2 ,2 ,15 cells was inhibited by transfection of miRNA‐548ah inhibitors (1 .01 ± 0 .13 ,t= 15 .48 , P< 0 .01) .Compared with control group ,the levels of HBsAg ([6 .45 ± 0 .46 ] IU/mL vs [2 .60 ± 0 .20 ] IU/mL , t = 7 .48 , P <0 .01) ,HBeAg ([5 .49 ± 0 .27] NCU/mL vs [4 .15 ± 0 .34 ] NCU/mL , t = 3 .10 , P < 0 .05 ) and HBV DNA ([3 .93 ± 0 .06] lg copy/mL vs[2 .04 ± 0 .07] lg copy/mL ,t = 18 .89 , P< 0 .01) in the supernatant of cultured HepG2 ,2 ,15 cells significantly decreased in inhibitor group . The expression of HDAC4 in HepG2 ,2 ,15 cells significantly decreased after transfection of miRNA‐548ah mimics (2 .98 ± 0 .94) ,but significantly increased after transfection of miRNA‐548ah inhibitors (23 .77 ± 6 .74 ) , with statistical significance (F= 9 .34 , P< 0 .01) .The expression of HDAC4 protein was also significantly inhibited after transfection of miRNA‐548ah mimics (0 .53 ± 0 .14 vs 0 .23 ± 0 .02 , t = 3 .58 , P = 0 .02) .The activity of luciferase was significantly inhibited by transfection of miRNA‐548ah mimics (7 .62 ± 0 .45 vs 6 .65 ±0 .27 ,t = 3 .18 , P = 0 .03 ) .Conclusion miRNA‐548ah may promote the replication and expression of HBV through the regulation of target gene HDAC4 .